Vladimir,

This patch adds a TARGET_FN_OTHER_HARD_REG_USAGE hook.  The hook is used to
list hard registers that are set or clobbered by a call to a function, but are
not listed as such in the function body, such as f.i. registers clobbered by
veneers inserted by the linker.

Thanks,
  -Tom

2013-03-30  Radovan Obradovic  <robradovic@mips.com>
            Tom de Vries  <tom@codesourcery.com>

	* hooks.c (hook_void_hard_reg_set_containerp): New function.
	* hooks.h (hook_void_hard_reg_set_containerp): Declare.
	* target.def (fn_other_hard_reg_usage): New DEFHOOK.
	* doc/tm.texi.in (@node Stack and Calling): Add Miscellaneous Register
	Hooks to @menu.
	(@node Miscellaneous Register Hooks): New node.
	(@hook TARGET_FN_OTHER_HARD_REG_USAGE): New hook.
	* doc/tm.texi: Regenerate.